<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="菜品名称" prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入菜品名称"
          clearable
          @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="售卖状态" prop="status">
        <el-select v-model="queryParams.status" placeholder="请选择售卖状态" clearable>
          <el-option
            v-for="dict in dish_status"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="Plus"
          @click="handleAdd"
          v-hasPermi="['merchant:dish:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="Edit"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['merchant:dish:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="Delete"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['merchant:dish:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="Download"
          @click="handleExport"
          v-hasPermi="['merchant:dish:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="dishList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <!-- <el-table-column label="主键" align="center" prop="id" /> -->
      <el-table-column label="菜品名称" align="center" prop="name" />
      <el-table-column label="售价" align="center">
        <template #default="scope">
          <el-tag type="danger" effect="dark">￥{{ scope.row.price }}</el-tag>
        </template>
      </el-table-column>
     
      <el-table-column label="图片" align="center" prop="image" width="100">
        <template #default="scope">
          <image-preview :src="scope.row.image" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="售卖状态" align="center" prop="status">
        <template #default="scope">
          <dict-tag :options="dish_status" :value="scope.row.status"/>
        </template>
      </el-table-column>
      <el-table-column label="更新时间" align="center" prop="updateTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.updateTime,'{y}-{m}-{d} {h}:{i}:{s}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)" v-hasPermi="['merchant:dish:edit']">修改</el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)" v-hasPermi="['merchant:dish:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      v-model:page="queryParams.pageNum"
      v-model:limit="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改菜品管理对话框 -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="dishRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="菜品名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入菜品名称" />
        </el-form-item>
        <el-form-item label="售价" prop="price">
          <el-input v-model="form.price" placeholder="请输入售价" />
        </el-form-item>
        <el-form-item label="图片" prop="image">
          <image-upload v-model="form.image"/>
        </el-form-item>
        <el-form-item label="描述信息" prop="description">
          <el-input v-model="form.description" placeholder="请输入描述信息" />
        </el-form-item>
        <el-form-item label="售卖状态" prop="status">
          <el-select v-model="form.status" placeholder="请选择售卖状态">
            <el-option
              v-for="dict in dish_status"
              :key="dict.value"
              :label="dict.label"
              :value="parseInt(dict.value)"
            ></el-option>
          </el-select>
        </el-form-item>
        <el-divider content-position="center">菜品口味关系信息</el-divider>
        <el-row :gutter="10" class="mb8">
          <el-col :span="1.5">
            <el-button type="primary" icon="Plus" @click="handleAddDishFlavor">添加</el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button type="danger" icon="Delete" @click="handleDeleteDishFlavor">删除</el-button>
          </el-col>
        </el-row>
        <el-table :data="dishFlavorList" :row-class-name="rowDishFlavorIndex" @selection-change="handleDishFlavorSelectionChange" ref="dishFlavor">
          <el-table-column type="selection" width="50" align="center" />
          <el-table-column label="序号" align="center" prop="index" width="50"/>
          <el-table-column label="口味名称" prop="name" width="150">
            <template #default="scope">
              <el-select v-model="scope.row.name" placeholder="请输入口味名称" @change="(value) => handleFlavorNameChange(value, scope.row)">
                <el-option 
                  v-for="dishFlavor in dishFlavorListSelect" 
                  :key="dishFlavor.name" 
                  :label="dishFlavor.name" 
                  :value="dishFlavor.name" 
                />
              </el-select>
            </template>
          </el-table-column>

          <el-table-column label="口味列表" prop="value" width="150">
            <template #default="scope">
              <el-select
                v-model="scope.row.value"
                placeholder="请选择口味值"
                multiple
                :disabled="!scope.row.name"
                style="width: 100%;"
              >
                <el-option
                  v-for="item in getFlavorValueOptions(scope.row.name)"
                  :key="item"
                  :label="item"
                  :value="item"
                />
              </el-select>
            </template>
          </el-table-column>
        </el-table>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Dish">
import { listDish, getDish, delDish, addDish, updateDish } from "@/api/merchant/dish"

const { proxy } = getCurrentInstance()
const { dish_status } = proxy.useDict('dish_status')

const dishList = ref([])
const dishFlavorList = ref([])
const open = ref(false)
const loading = ref(true)
const showSearch = ref(true)
const ids = ref([])
const checkedDishFlavor = ref([])
const single = ref(true)
const multiple = ref(true)
const total = ref(0)
const title = ref("")

const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    name: null,
    status: null,
  },
  rules: {
    name: [
      { required: true, message: "菜品名称不能为空", trigger: "blur" }
    ],
    price: [
      { required: true, message: "售价不能为空", trigger: "blur" }
    ],
    image: [
      { required: true, message: "图片不能为空", trigger: "blur" }
    ],
    status: [
      { required: true, message: "售卖状态不能为空", trigger: "change" }
    ],
  }
})

const { queryParams, form, rules } = toRefs(data)

// -----------------------------------------------------
// 定义口味名称和口味列表静态数据
const dishFlavorListSelect = ref([
  {name:"辣度",value:["不辣","微辣","中辣","重辣"]},
  {name:"忌口",value:["不要葱","不要蒜","不要香菜","不要辣"]},
  {name:"甜味",value:["无糖","少糖","半糖","多糖"]},
])

/** 处理口味名称变化，联动设置口味列表 */
function handleFlavorNameChange(name, row) {
  const selected = dishFlavorListSelect.value.find(item => item.name === name);
  row.value = [];
}

/** 根据口味名称获取对应的口味值数组 */
function getFlavorValueOptions(name) {
  const selected = dishFlavorListSelect.value.find(item => item.name === name);
  return selected ? selected.value : [];
}
// -----------------------------------------------------
/** 查询菜品管理列表 */
function getList() {
  loading.value = true
  listDish(queryParams.value).then(response => {
    dishList.value = response.rows
    total.value = response.total
    loading.value = false
  })
}

// 取消按钮
function cancel() {
  open.value = false
  reset()
}

// 表单重置
function reset() {
  form.value = {
    id: null,
    name: null,
    price: null,
    image: null,
    description: null,
    status: null,
    createTime: null,
    updateTime: null
  }
  dishFlavorList.value = []
  proxy.resetForm("dishRef")
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1
  getList()
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef")
  handleQuery()
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map(item => item.id)
  single.value = selection.length != 1
  multiple.value = !selection.length
}

/** 新增按钮操作 */
function handleAdd() {
  reset()
  open.value = true
  title.value = "添加菜品管理"
}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset()
  const _id = row.id || ids.value
  getDish(_id).then(response => {
    form.value = response.data

    // 将 dishFlavorList 中的 value 字段转为数组
    dishFlavorList.value = response.data.dishFlavorList.map(flavor => ({
      ...flavor,
      value: flavor.value ? flavor.value.split(',') : []
    }))

    open.value = true
    title.value = "修改菜品管理"
  })
}

/** 提交按钮 */
function submitForm() {
  proxy.$refs["dishRef"].validate(valid => {
    if (valid) {
      form.value.dishFlavorList = dishFlavorList.value.map(flavor => ({
        ...flavor,
        value: Array.isArray(flavor.value) ? flavor.value.join(',') : flavor.value
      }));
      if (form.value.id != null) {
        updateDish(form.value).then(response => {
          proxy.$modal.msgSuccess("修改成功")
          open.value = false
          getList()
        })
      } else {
        addDish(form.value).then(response => {
          proxy.$modal.msgSuccess("新增成功")
          open.value = false
          getList()
        })
      }
    }
  })
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _ids = row.id || ids.value
  proxy.$modal.confirm('是否确认删除菜品管理编号为"' + _ids + '"的数据项？').then(function() {
    return delDish(_ids)
  }).then(() => {
    getList()
    proxy.$modal.msgSuccess("删除成功")
  }).catch(() => {})
}

/** 菜品口味关系序号 */
function rowDishFlavorIndex({ row, rowIndex }) {
  row.index = rowIndex + 1
}

/** 菜品口味关系添加按钮操作 */
function handleAddDishFlavor() {
  let obj = {}
  obj.name = ""
  obj.value = ""
  dishFlavorList.value.push(obj)
}

/** 菜品口味关系删除按钮操作 */
function handleDeleteDishFlavor() {
  if (checkedDishFlavor.value.length == 0) {
    proxy.$modal.msgError("请先选择要删除的菜品口味关系数据")
  } else {
    const dishFlavors = dishFlavorList.value
    const checkedDishFlavors = checkedDishFlavor.value
    dishFlavorList.value = dishFlavors.filter(function(item) {
      return checkedDishFlavors.indexOf(item.index) == -1
    })
  }
}

/** 复选框选中数据 */
function handleDishFlavorSelectionChange(selection) {
  checkedDishFlavor.value = selection.map(item => item.index)
}

/** 导出按钮操作 */
function handleExport() {
  proxy.download('merchant/dish/export', {
    ...queryParams.value
  }, `dish_${new Date().getTime()}.xlsx`)
}

getList()
</script>
